I would get another one. A little advice though. Get one that is smaller than the current one, (a better chance of becoming pairs). Also, at you lfs, get a boxed in net ( not sure what they are called) in case they do fight. This way, you can seperate the new one in the square net right next to your first clown fish. They can get used to each other without fighting. I recently added a mate for my clown a couple months ago and had to do that because my female clown kept attacking the new one. She'd grab a hold of his fin and drag him around. It only took a day and now they are best buds!